Vehicle refrigerating system and vehicle

By connecting a Stirling refrigeration unit to the engine exhaust pipe in the vehicle and using the heat from the exhaust gas to drive the refrigeration, the problem of limited power performance during vehicle cooling is solved, achieving efficient refrigeration and power output while reducing thermal pollution.

CN223934505UActive Publication Date: 2026-02-24WEIGANG (BEIJING) AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202520805186.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-02-24
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

Existing vehicle refrigeration systems rely on the engine to drive the onboard air conditioning compressor, which limits the vehicle's power performance.

Method used

The Stirling refrigeration unit is connected to the engine exhaust pipe. It uses the heat from the exhaust gas to drive the Stirling refrigeration unit and transfers the cooling capacity to the cab through heat exchange components, thus avoiding additional loss of engine power.

Benefits of technology

It achieves effective utilization of engine exhaust heat, improves power output and energy utilization efficiency during vehicle cooling, reduces engine exhaust temperature, and reduces thermal pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vehicle refrigerating system and a vehicle, and the vehicle refrigerating system comprises a Stirling refrigerator, a heat exchanger and a heat exchange assembly. The Stirling cryocooler is used for being connected with an exhaust pipeline of an engine, the Stirling cryocooler is provided with a cold end, and the Stirling cryocooler is configured to be capable of being driven by tail gas exhausted by the exhaust pipeline and refrigerating at the cold end. The heat exchanger is used for exchanging heat with a cab; and part of the heat exchange assemblies are arranged at the cold end so as to absorb the cooling capacity of the cold end, and the other part of the heat exchange assemblies are connected with the heat exchanger so as to provide the cooling capacity for the heat exchanger. According to the vehicle refrigerating system, the cab can be refrigerated by recycling the exhaust of the engine, so that the power of the engine is prevented from being additionally consumed when the vehicle is refrigerated, and the power performance of the vehicle is prevented from being influenced when the vehicle is refrigerated.
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Description

Technical Field

[0001] This application relates to the field of vehicle refrigeration technology, and more particularly to a vehicle refrigeration system and a vehicle. Background Technology

[0002] Currently, vehicle air conditioning systems use an engine to drive the compressor, which in turn cools the vehicle.

[0003] However, the engine's power consumption is reduced when the air conditioner compressor is powered by the engine, which limits the vehicle's power performance when it is cooling down. Utility Model Content

[0004] The purpose of this application is to at least solve the problem of limited vehicle power performance during vehicle cooling in the prior art. This purpose is achieved through the following means:

[0005] The first aspect of this application discloses a vehicle refrigeration system for converting exhaust heat energy from an engine into cooling for the passenger compartment, comprising: a Stirling refrigerator, a heat exchanger, and heat exchange components. The Stirling refrigerator is connected to the engine's exhaust pipe and has a cold end. The Stirling refrigerator is configured to be driven by exhaust gases discharged from the exhaust pipe and to provide cooling at the cold end. The heat exchanger is used to exchange heat with the passenger compartment. A portion of the heat exchange components is located at the cold end to absorb the cooling energy at the cold end, and another portion of the heat exchange components is connected to the heat exchanger to provide cooling energy to the heat exchanger.

[0006] The vehicle refrigeration system of this application connects a Stirling refrigerator to the engine's exhaust pipe, enabling the recovery of waste heat from the exhaust gas. This waste heat drives the Stirling refrigerator, which cools the cold end. A heat exchange assembly transfers the cooling energy from the cold end of the Stirling refrigerator to the heat exchange assembly, which then exchanges heat with the cab, thus cooling the cab. This vehicle refrigeration system effectively utilizes the waste heat from engine exhaust, converting the heat energy in the exhaust gas into cooling energy for the cab. This avoids the additional power loss to the engine caused by the compressor being driven during vehicle cooling, allowing the vehicle to maintain good power output while cooling, thus improving overall vehicle performance and energy efficiency. Furthermore, this vehicle refrigeration system reduces the temperature of the engine exhaust gas, thereby reducing thermal pollution from the vehicle.

[0007] In some embodiments, the heat exchange assembly includes a radiator and heat exchange pipes. The radiator includes a main body portion disposed at the cold end and a plurality of heat dissipation fins disposed on the main body portion. The plurality of heat dissipation fins are arranged circumferentially spaced along the main body portion. A portion of the heat exchange pipes abuts against each of the heat dissipation fins, and another portion of the heat exchange pipes is connected to the heat exchanger. The heat exchange pipes contain a heat exchange medium for cold energy exchange.

[0008] In some embodiments, the heat exchange pipeline includes a plurality of heat exchange sections connected in sequence, each heat exchange section being located between adjacent heat dissipation fins and abutting against each of the adjacent heat dissipation fins.

[0009] In some embodiments, the heat exchange section includes at least two first heat exchange sections and at least one second heat exchange section. In the width direction of the heat dissipation fins, at least two first heat exchange sections are spaced apart, and two adjacent first heat exchange sections in the width direction of the heat dissipation fins are connected by the second heat exchange section.

[0010] In some embodiments, the heat exchange pipeline further includes a plurality of connecting portions, with two adjacent heat exchange portions connected by the connecting portions, and each connecting portion located on the same side of each heat exchange portion.

[0011] In some embodiments, the heat exchange pipeline further includes a first connecting section and a second connecting section, wherein one end of the heat exchange section is connected to one end of the first connecting section, the other end of the first connecting section is connected to the inlet of the heat exchanger, and the other end of the heat exchange section is connected to one end of the second connecting section, the other end of the second connecting section is connected to the outlet of the heat exchanger.

[0012] In some embodiments, the heat exchanger includes connecting pipes and a plurality of heat exchange plates, the connecting pipes passing through each of the heat exchange plates, the inlet of the heat exchange pipes being connected to the first connecting section, and the outlet of the heat exchange pipes being connected to the second connecting section.

[0013] In some embodiments, the heat exchanger further includes a fan, the outlet of which faces the connecting pipe and the heat exchange fins.

[0014] In some embodiments, the heat exchange assembly further includes a pump body connected to the heat exchange pipeline to enable the heat exchange medium to circulate within the heat exchange pipeline.

[0015] A second aspect of this application discloses a vehicle comprising: a vehicle body, an engine, and a vehicle refrigeration system as described in the first aspect above. The vehicle body defines a driver's cab; the engine is disposed in the vehicle body and has an exhaust pipe; the vehicle refrigeration system is disposed in the vehicle body, the Stirling refrigerator is connected to the exhaust pipe of the engine, and the heat exchanger cooperates with the driver's cab and is used to generate heat exchange with the driver's cab.

[0016] The vehicle of this application, including the vehicle refrigeration system of the above embodiment, can effectively utilize the waste heat of engine exhaust gas, converting the heat energy in the exhaust gas discharged from the exhaust pipe into cooling capacity for the passenger compartment. This avoids the problem of additional engine power loss due to the engine driving the compressor during vehicle cooling, allowing the vehicle to maintain good power output while cooling, thus improving the overall performance and energy efficiency of the vehicle. Furthermore, the vehicle refrigeration system of this application embodiment can reduce the temperature of the engine exhaust gas, thereby reducing thermal pollution generated by the vehicle. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0018] Figure 1 This is a schematic diagram of a vehicle refrigeration system according to an embodiment of this application.

[0019] Figure 2 This is an enlarged view of the heat sink according to an embodiment of this application.

[0020] Figure 3 This is an enlarged view of the heat exchange section in an embodiment of this application.

[0021] The labels in the attached diagram are as follows:

[0022] 100. Vehicle refrigeration system;

[0023] 1. Stirling refrigerator;

[0024] 2. Heat exchanger; 21. Connecting pipes; 22. Heat exchange fins; 23. Fan;

[0025] 3. Heat exchange assembly; 31. Radiator; 311. Main body; 312. Heat dissipation fins; 32. Heat exchange pipeline; 321. Heat exchange section; 3211. First heat exchange section; 3212. Second heat exchange section; 322. Connecting part; 323. First connecting section; 324. Second connecting section. Detailed Implementation

[0026] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0027] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0028] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure rotates, then an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0030] In the description of the application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", "height direction", "first direction", "second direction", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Currently, vehicle air conditioning systems use an engine to drive the compressor, which in turn cools the vehicle.

[0033] However, the engine's power consumption is reduced by driving the compressor of the vehicle's air conditioning system, which limits the vehicle's power performance when the air conditioning is on.

[0034] To at least address the problem of limited vehicle power performance during vehicle cooling in existing technologies, embodiments of this application propose a vehicle cooling system 100 that can cool the cab by recovering engine exhaust, thereby avoiding additional power loss from the engine during vehicle cooling and thus preventing any impact on vehicle power performance during cooling.

[0035] Embodiments of this application also propose a vehicle including the vehicle cooling system 100 as described above.

[0036] The vehicle refrigeration system 100 and the vehicle according to embodiments of this application are described below with reference to the accompanying drawings.

[0037] like Figure 1 As shown, the vehicle refrigeration system 100 of an embodiment of this application includes: a Stirling refrigerator 1, a heat exchanger 2, and a heat exchange assembly 3. The Stirling refrigerator 1 is connected to the exhaust pipe of the engine. The Stirling refrigerator 1 has a cold end and is configured to be driven by the exhaust gas discharged from the exhaust pipe and to provide cooling at the cold end. The heat exchanger 2 is used to exchange heat with the passenger compartment. Part of the heat exchange assembly 3 is located at the cold end to absorb the cold energy at the cold end, and another part of the heat exchange assembly 3 is connected to the heat exchanger 2 to provide cooling energy to the heat exchanger 2.

[0038] The exhaust gas from the engine contains a large amount of waste heat. By connecting the Stirling refrigerator 1 to the engine's exhaust pipe, the waste heat in the exhaust gas can be recovered. The heat from the exhaust gas drives the Stirling refrigerator 1 to work, allowing it to cool the cold end. The heat exchange component 3 transfers the cold energy from the cold end of the Stirling refrigerator 1 to the heat exchange component 3, which then exchanges heat with the cab, thereby cooling the cab.

[0039] The vehicle cooling system 100 of this application embodiment effectively utilizes the waste heat of engine exhaust gas, converting the heat energy in the exhaust gas discharged from the exhaust pipe into cooling capacity for the passenger compartment. This avoids the problem of additional engine power loss due to the engine driving the compressor during vehicle cooling, allowing the vehicle to maintain good power output while cooling, thus improving the overall performance and energy efficiency of the vehicle. Furthermore, the vehicle cooling system 100 of this application embodiment can reduce the temperature of the engine exhaust gas, thereby reducing thermal pollution generated by the vehicle.

[0040] Combination Figure 1 and Figure 2As shown, in some embodiments, the heat exchange assembly 3 includes a radiator 31 and a heat exchange pipeline 32. The radiator 31 includes a main body 311 disposed at the cold end and a plurality of heat dissipation fins 312 disposed on the main body 311. The plurality of heat dissipation fins 312 are arranged circumferentially and spaced apart along the main body 311. Part of the heat exchange pipeline 32 abuts against each heat dissipation fin 312, and another part of the heat exchange pipeline 32 is connected to the heat exchanger 2. The heat exchange pipeline 32 is provided with a heat exchange medium for cold exchange.

[0041] The main body 311 can be connected to the cold end of the Stirling refrigerator 1 by welding, threaded connection or other mechanical connection, or it can be integrated into the cold end of the Stirling refrigerator 1 by integral molding. This application embodiment does not impose any limitation. The heat dissipation fins 312 can be connected to the main body 311 by welding, threaded connection or other mechanical connection, or the heat dissipation fins 312 can be integrated into the main body 311 by integral molding. This application embodiment does not impose any limitation.

[0042] The main body 311 is located at the cold end of the Stirling refrigerator 1, allowing direct contact with the cold end surface and effective absorption of the cold energy generated at the cold end. Multiple heat dissipation fins 312 are spaced circumferentially along the main body 311, increasing the surface area of ​​the radiator 31 and enabling rapid absorption of cold energy from the main body 311 through the fins. Heat exchange pipes 32 abut against each heat dissipation fin 312, promptly absorbing the cold energy from the fins and transferring it to the heat exchange pipes 32 via a heat exchange medium, thereby improving the efficiency of cold energy absorption at the cold end.

[0043] The heat exchange medium has excellent heat absorption and conduction properties, enabling it to rapidly absorb the cooling energy from the radiator 31. When the heat exchange medium flows through the heat exchange pipe 32, which abuts against the heat dissipation fins 312, it quickly absorbs cooling energy from the fins 312 through heat conduction, thus lowering its own temperature. The heat exchange medium, carrying the cooling energy, flows to the heat exchanger 2, where it exchanges heat with the hot air in the cab or other components requiring cooling, releasing the cooling energy. This achieves efficient transfer of cooling energy from the radiator 31 to the heat exchanger 2.

[0044] Combination Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the heat exchange pipeline 32 includes a plurality of heat exchange sections 321 connected in sequence, each heat exchange section 321 being located between adjacent heat dissipation fins 312 and abutting against each of the adjacent heat dissipation fins 312.

[0045] Each heat exchange section 321 is located between adjacent heat dissipation fins 312 and abuts against each of the adjacent heat dissipation fins 312, thereby maximizing the contact area between the heat exchange pipe 32 and the heat dissipation fins 312. Therefore, the heat exchange section 321 can more fully absorb the cold energy emitted by the heat dissipation fins 312, thereby increasing the cold energy acquisition capacity of the heat exchange pipe 32.

[0046] Since each heat exchange section 321 is located between adjacent heat dissipation fins 312 and abuts against each of the adjacent heat dissipation fins 312, the heat dissipation fins 312 can install and fix the heat exchange section 321, thereby increasing the stability of the heat exchange section 321. Thus, the heat exchange pipe 32 can be supported by the heat dissipation fins 312. Furthermore, the heat exchange section 321 can also limit the deformation of the heat dissipation fins 312, thereby increasing the stability of the heat dissipation fins 312.

[0047] like Figure 3 As shown, in some embodiments, the heat exchange section 321 includes at least two first heat exchange sections 3211 and at least one second heat exchange section 3212. In the width direction of the heat dissipation fins 312, at least two first heat exchange sections 3211 are spaced apart, and two adjacent first heat exchange sections 3211 in the width direction of the heat dissipation fins 312 are connected by the second heat exchange section 3212.

[0048] At least two first heat exchange sections 3211 are spaced apart in the width direction of the heat dissipation fins 312. Two adjacent first heat exchange sections 3211 in the width direction of the heat dissipation fins 312 are connected by a second heat exchange section 3212. This increases the length of the heat exchange section 321, thereby making the heat exchange between the heat exchange section 321 and the heat dissipation fins 312 more complete and improving the heat exchange efficiency between the heat exchange section 321 and the heat dissipation fins 312.

[0049] The longer heat exchange section 321 provides a longer flow path for the heat exchange medium, which increases the residence time of the heat exchange medium in the pipeline. This helps the heat exchange medium to fully absorb the cold energy of the heat dissipation fins 312, improves the cold energy carrying capacity of the heat exchange medium, and further improves the heat exchange efficiency between the heat exchange section 321 and the heat dissipation fins 312.

[0050] Combination Figure 1 and Figure 2 As shown, in some embodiments, the heat exchange pipeline 32 further includes a plurality of connecting parts 322, and two adjacent heat exchange parts 321 are connected by connecting parts 322, with each connecting part 322 located on the same side of each heat exchange part 321.

[0051] Each connection part 322 is located on the same side of each heat exchange part 321. When installing and removing the heat exchange part 321, interference between the connection part 322 located on different sides of the heat exchange part 321 and the heat dissipation fins 312 can be avoided, thereby reducing the difficulty of installing the heat exchange part 321.

[0052] Moreover, the connection part 322 is located on the same side, which makes the structure of the entire heat exchange pipeline 32 more regular, making it easier for staff to find and operate, and thus enabling more efficient inspection or maintenance of the heat exchange pipeline 32.

[0053] like Figure 1 As shown, in some embodiments, the heat exchange pipeline 32 further includes a first connecting section 323 and a second connecting section 324. One end of the heat exchange section 321 is connected to one end of the first connecting section 323, and the other end of the first connecting section 323 is connected to the inlet of the heat exchanger 2. The other end of the heat exchange section 321 is connected to one end of the second connecting section 324, and the other end of the second connecting section 324 is connected to the outlet of the heat exchanger 2.

[0054] The first connecting section 323 connects the inlet of the heat exchanger 2 to the heat exchange section 321 at one end, and the second connecting section 324 connects the heat exchange section 321 at the other end to the outlet of the heat exchanger 2, forming a complete circulation loop. This allows the heat exchange medium to circulate within the closed system consisting of the heat exchanger 2, the heat exchange section 321, the first connecting section 323, and the second connecting section 324. During the circulation of the heat exchange medium, after absorbing the cooling energy from the radiator 31 in the heat exchange section 321, the heat exchange medium releases the cooling energy in the heat exchanger 2, achieving continuous transfer and recycling of cooling energy, thereby ensuring the stable operation of the vehicle refrigeration system 100 in this embodiment.

[0055] Through the connection of the first connecting section 323 and the second connecting section 324, the cooling capacity can be transferred in the system along a specific path. The heat exchange medium flows out from the outlet of the heat exchanger 2, passes through the second connecting section 324 to the heat exchange section 321, fully absorbs the cooling capacity of the radiator 31 in the heat exchange section 321, and then flows back to the inlet of the heat exchanger 2 through the first connecting section 323. Thus, the orderly cooling capacity transfer path can improve the efficiency and accuracy of cooling capacity transfer, avoid confusion and loss of cooling capacity during the transfer process, and enable the vehicle refrigeration system 100 of this embodiment to transfer cooling capacity from the radiator 31 to the heat exchanger 2 more efficiently.

[0056] like Figure 1 As shown, in some embodiments, the heat exchanger 2 includes a connecting pipe 21 and a plurality of heat exchange plates 22. The connecting pipe 21 passes through each heat exchange plate 22. The inlet of the heat exchange pipe 32 is connected to the first connecting section 323, and the outlet of the heat exchange pipe 32 is connected to the second connecting section 324.

[0057] By setting multiple heat exchange fins 22, the heat exchange area can be increased, allowing for sufficient heat exchange between the heat exchange medium flowing through the connecting pipe 21 and the heat exchange fins 22. Furthermore, the heat exchange pipe 32 is connected to the heat exchanger 2, enabling heat transfer between the heat exchange medium and the connecting pipe 21 and heat exchange fins 22 through the pipe wall as the heat exchange medium flows within the pipe, further improving heat exchange efficiency.

[0058] The inlet of heat exchange pipe 32 is connected to the first connecting section 323, and the outlet of heat exchange pipe 32 is connected to the second connecting section 324, thus forming a specific heat transfer path. During the flow of the heat exchange medium in heat exchange pipe 32, it can pass through each heat exchange plate 22 in an orderly manner, so that heat is transferred from the high-temperature area through the heat exchange plate 22 and the connecting pipe 21 to the heat exchange medium, and then the heat exchange medium carries away the heat, realizing a highly efficient heat transfer process.

[0059] The heat exchanger 2, composed of multiple heat exchange plates 22 and connecting pipes 21, has a compact structure and can achieve a large heat exchange area in a limited space, thus making full use of the space.

[0060] like Figure 1 As shown, in some embodiments, the heat exchanger 2 further includes a fan 23, the outlet of which faces the connecting pipe 21 and the heat exchange fins 22.

[0061] When the fan 23 operates, it increases the airflow speed. The air blown out of the fan 23 acts on the connecting pipe 21 and the heat exchange fins 22, accelerating the heat exchange between the air and the surface of the connecting pipe 21 and the heat exchange fins 22. This allows the heat exchange fins 22 to continuously absorb heat from the connecting pipe 21, improving heat exchange efficiency. Furthermore, the fan 23 can deliver the heat-exchanged air into the cab, thereby improving the cooling effect on the cab.

[0062] In some embodiments, the heat exchange assembly 3 further includes a pump body connected to the heat exchange pipeline 32 to enable the heat exchange medium to circulate within the heat exchange pipeline 32.

[0063] The pump body provides power for the circulation of the heat exchange medium in the heat exchange pipeline 32. The pump body enables the heat exchange medium to flow continuously in the heat exchange pipeline 32, thereby enabling the heat exchange medium to exchange heat efficiently.

[0064] The vehicle according to this application embodiment includes: a vehicle body, an engine, and a vehicle refrigeration system 100 as described in the above embodiment. The vehicle body defines the driver's cab; the engine is located in the vehicle body and has an exhaust pipe; the vehicle refrigeration system 100 is located in the vehicle body, a Stirling refrigerator 1 is connected to the exhaust pipe of the engine, and a heat exchanger 2 cooperates with the driver's cab and is used to generate heat exchange with the driver's cab.

[0065] The vehicle of this application embodiment includes the vehicle cooling system 100 as described in the above embodiment, which can effectively utilize the waste heat of engine exhaust gas, converting the heat energy in the exhaust gas discharged from the exhaust pipe into cooling capacity for the cab. This avoids the problem of additional engine power loss due to the engine driving the compressor during vehicle cooling, allowing the vehicle to maintain good power output while cooling, thus improving the overall performance and energy efficiency of the vehicle. Furthermore, the vehicle cooling system 100 of this application embodiment can reduce the temperature of the engine exhaust gas, thereby reducing thermal pollution generated by the vehicle.

[0066] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vehicle refrigeration system for converting engine exhaust heat energy into cooling for the passenger compartment, characterized in that, include: A Stirling refrigerator for connection to the exhaust pipe of an engine, the Stirling refrigerator having a cold end, the Stirling refrigerator being configured to be driven by the exhaust gas discharged from the exhaust pipe and to provide cooling at the cold end; Heat exchanger, used to exchange heat with the cab; The heat exchange assembly includes a portion located at the cold end to absorb the cold energy at the cold end, and another portion connected to the heat exchanger to provide cold energy to the heat exchanger.

2. The vehicle refrigeration system according to claim 1, characterized in that, The heat exchange assembly includes a radiator and heat exchange pipes. The radiator includes a main body portion disposed at the cold end and a plurality of heat dissipation fins disposed on the main body portion. The plurality of heat dissipation fins are arranged circumferentially spaced along the main body portion. A portion of the heat exchange pipes abuts against each of the heat dissipation fins, and another portion of the heat exchange pipes is connected to the heat exchanger. The heat exchange pipes contain a heat exchange medium for cold energy exchange.

3. The vehicle refrigeration system according to claim 2, characterized in that, The heat exchange pipeline includes a plurality of heat exchange sections connected in sequence, each heat exchange section being located between adjacent heat dissipation fins and abutting against each of the adjacent heat dissipation fins.

4. The vehicle refrigeration system according to claim 3, characterized in that, The heat exchange section includes at least two first heat exchange sections and at least one second heat exchange section. In the width direction of the heat dissipation fins, at least two first heat exchange sections are spaced apart, and two adjacent first heat exchange sections in the width direction of the heat dissipation fins are connected by the second heat exchange section.

5. The vehicle refrigeration system according to claim 3, characterized in that, The heat exchange pipeline also includes multiple connecting parts, and two adjacent heat exchange parts are connected through the connecting parts, with each connecting part located on the same side of each heat exchange part.

6. The vehicle refrigeration system according to claim 3, characterized in that, The heat exchange pipeline further includes a first connecting section and a second connecting section. One of the heat exchange sections is connected to one end of the first connecting section, and the other end of the first connecting section is connected to the inlet of the heat exchanger. The other heat exchange section is connected to one end of the second connecting section, and the other end of the second connecting section is connected to the outlet of the heat exchanger.

7. The vehicle refrigeration system according to claim 6, characterized in that, The heat exchanger includes connecting pipes and multiple heat exchange plates. The connecting pipes pass through each heat exchange plate. The inlet of the heat exchange pipes is connected to the first connecting section, and the outlet of the heat exchange pipes is connected to the second connecting section.

8. The vehicle refrigeration system according to claim 7, characterized in that, The heat exchanger also includes a fan, the outlet of which faces the connecting pipe and the heat exchange fins.

9. The vehicle refrigeration system according to any one of claims 2 to 8, characterized in that, The heat exchange assembly also includes a pump body connected to the heat exchange pipeline to enable the heat exchange medium to circulate within the heat exchange pipeline.

10. A vehicle, characterized in that, include: The vehicle body defines the area outside the driver's cab; An engine is located in the vehicle body and has an exhaust pipe; The vehicle refrigeration system as described in any one of claims 1 to 9 is disposed in the vehicle body, the Stirling refrigeration unit is connected to the exhaust pipe of the engine, and the heat exchanger is coupled to the cab and used to generate heat exchange with the cab.